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Colebrook Dam, West Branch Farmington River

Colebrook Dam, West Branch Farmington River
 Drainage Area: 118 sq. miles 
 Channel Capacity: 3,000 cfs 
 Storage at Spillway Crest: 7.98 in / 50,200 ac-ft  
 Normal Pool: 708 Feet NGVD (Normal), 714.5 Feet (Spring) 
 Gate Settings for May 15, 2026 01:01 pm Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  0.20 0.20 0.20          
Date Time (EDT) Pool
(ft)
Storage
(%)
Storage
(ac-ft)
Goodwin
(ft)
Flow
(cfs)
Inflow
(cfs)
Precip
(in)
Air Temp
(F)
May-16 12:30 pm 710.48 3.8 1,874 638.04 140 96 20.42 71.3
May-16 11:30 am 710.48 3.8 1,874 638.08 140 96 20.42 68.7
May-16 10:30 am 710.50 3.8 1,890 638.10 140 96 20.42 66.2
May-16 09:30 am 710.49 3.8 1,882 638.09 140 96 20.42 60.0
May-16 08:30 am 710.50 3.8 1,890 638.10 140 97 20.42 50.9
May-16 07:30 am 710.50 3.8 1,890 638.08 140 96 20.42 49.3
May-16 06:30 am 710.50 3.8 1,890 638.10 140 97 20.41 49.5
May-16 05:30 am 710.50 3.8 1,890 638.07 140 99 20.41 50.3
May-16 04:30 am 710.50 3.8 1,890 638.04 140 97 20.41 50.6
May-16 03:30 am 710.51 3.8 1,898 638.10 142 97 20.41 51.6
May-16 02:30 am 710.50 3.8 1,890 638.08 140 97 20.41 52.0
May-16 01:30 am 710.51 3.8 1,898 638.05 140 97 20.41 52.9
May-16 12:30 am 710.52 3.8 1,906 638.10 140 97 20.41 53.8
May-15 11:30 pm 710.51 3.8 1,898 638.10 140 97 20.41 54.6
May-15 10:30 pm 710.52 3.8 1,906 638.06 140 97 20.41 54.8
May-15 09:30 pm 710.52 3.8 1,906 638.10 140 97 20.41 55.4
May-15 08:30 pm 710.52 3.8 1,906 638.08 142 97 20.41 56.7
May-15 07:30 pm 710.52 3.8 1,906 638.04 140 97 20.41 60.4
May-15 06:30 pm 710.52 3.8 1,906 638.10 140 97 20.41 58.1
May-15 05:30 pm 710.52 3.8 1,906 638.06 142 97 20.41 58.9
May-15 04:30 pm 710.53 3.8 1,913 638.07 142 97 20.41 61.9
May-15 03:30 pm 710.53 3.8 1,913 638.04 142 99 20.41 61.3
May-15 02:30 pm 710.53 3.8 1,913 638.07 140 99 20.41 61.6
May-15 01:30 pm 710.53 3.8 1,913 638.09 140 99 20.41 60.3
May-15 12:30 pm 710.54 3.9 1,921 638.06 140 99 20.41 58.6
Maximum 24 Hour Drawdown Rate Not Available - Missing Pool Data
Report Generated May 16, 2026 04:44 pm